The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 15, 2022
Filed:
Apr. 12, 2019
Applicant:
United Technologies Corporation, Farmington, CT (US);
Inventors:
Jonathan Logan Miller, Belchertown, MA (US);
M. Rifat Ullah, East Hartford, CT (US);
Assignee:
Raytheon Technologies Corporation, Farmington, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01D 11/00 (2006.01); F04D 29/12 (2006.01); F16J 15/44 (2006.01); F01D 11/02 (2006.01); F01D 25/18 (2006.01);
U.S. Cl.
CPC ...
F01D 11/003 (2013.01); F01D 11/025 (2013.01); F01D 25/183 (2013.01); F04D 29/122 (2013.01); F16J 15/441 (2013.01); F05D 2220/32 (2013.01); F05D 2240/581 (2013.01); F05D 2300/50211 (2013.01);
Abstract
A bearing compartment seal for a gas turbine engine includes at least one seal ring defining an axis and having a radially inward facing sealing surface and a seal runner having a support constructed of a first material and an interface portion constructed of a second material. The interface portion includes a radially outward facing surface. A first coefficient of thermal expansion of the second material is at most approximately equal to a second coefficient of thermal expansion of the at least one seal ring.